MLCC vs Silver Mica

[ksjung88]

A few days ago, one of my friends gave me a DAC PCB, which he himself designed, ordered and assembled.

He has already made two DACs using those PCBs and is well satisfied with them.

But In his BOM, he specified a lot of Silver Mica capacitors by Cornell.

As you know, they are expensive. So I am considering replacing them with some MLCCs.

Is there any valid, noticeable difference between two of them?

Are MLCCs good substitute for Silver Mica?

Any suggestion will be welcomed.

Best regards.

 

[dmills]

C0G and NP0 are fine, the others not so much.

Regards, Dan.

 

[ksjung88]

C0G and NP0 are fine, the others not so much.

Regards, Dan.

Thanks Dan

I know COG and NP0 are the same grade, depending on their manufacturers..I will try them anyway.

 

[marce]

It all depends on what the caps are doing in the circuit, if they are decoupling caps X7Rs are perfectly acceptable.

 

[Nisbeth]

I saw a presentation online a while ago by (IIRC) the CTO of Audio Precision which stated that MLCCs are of such good quality now that there is no reason to use silver mica anymore. Probably a few exceptions to that "rule" but still...

/U.

 

[ksjung88]

It all depends on what the caps are doing in the circuit, if they are decoupling caps X7Rs are perfectly acceptable.

I have to ask for the schmatics, thanks.

 

[ksjung88]

I saw a presentation online a while ago by (IIRC) the CTO of Audio Precision which stated that MLCCs are of such good quality now that there is no reason to use silver mica anymore. Probably a few exceptions to that "rule" but still...

/U.

Oh, that must be what I want to hear.

 

[marce]

I saw a presentation online a while ago by (IIRC) the CTO of Audio Precision which stated that MLCCs are of such good quality now that there is no reason to use silver mica anymore. Probably a few exceptions to that "rule" but still...

/U.

Which family of MLCCs, this is the problem there are many types from the excellent COG/NP0 (as good as mica), X8R and X7R types good for decoupling where size is critical, then you get to the cheaper and in my view only fit for the cheapest non critical assemblies the X5.... series and lower.